I don't think we have figured out if this was premeditated or not, but either way, SF is becoming incredibly dangerous. Progressive DA's and a neutered police force are to blame for the rise in violent crime.
Many of my friends have taken their remote gigs and left SF in the last 3 years. What's the point in rolling the dice every time you walk outside for some air and to potentially catch an attack or worse? I can't blame them at all for the move.